Send and receive large file over streams in ASP.NET Web Api C#

I’m working on a project where I need to send large audio files via streams from a client to a server. I’m using the ASP.NET Web Api to communicate between client and server. My client has a “SendFile” method which I believe works fine, but I don’t know how to make my server receive the data I’m sending via a stream. My client code looks like this so far:

Display data streamed from a Flask view as it updates

I have a view that generates data and streams it in real time. I can’t figure out how to send this data to a variable that I can use in my HTML template. My current solution just outputs the data to a blank page as it arrives, which works, but I want to include it in a larger page with formatting. How do I update, format, and display the data as it is streamed to the page?